Oswego City School District
Regents Exam Prep Center: What Is a Locus?
This site defines what a locus is and offers links to five locus theorems. Walks you through the six "Steps to solving a locus problem."
Oswego City School District
Regents Exam Prep Center: Locus at a Fixed Distance From a Point
This site defines a locus and introduces five theorems about loci. Click on the "Topic Index" link to find related practice activities and resources.
Oswego City School District
Regents Exam Prep Center: Compound Locus
Loci are applied to word problems in this online tutorial. Practice problems are included. The teacher resource page supplies practical problems.